emergency brake ?

[redvetracr]

were parking brake parts the same on rear disc and drum cars?

[bcmiller]

I don't think so. 

Check out this site if you need JL8 parts.  I have not done business with them so I can not give you any feedback.

http://www.jl8brakes.com/prod01.htm

[WorkinProgress]

The part you have shown is for a disc brake rear and it is totally different than a drum brake rear. 
       
                                                                                 - Warren